System.err java log location in ColdFusion

Question

I have some ColdFusion code which calls a function in a Java class via:

<cfset object = CreateObject("java","org.prog.jar.Class")>
<cfset object.Method()>

If an error is thrown in the Java class it writes the error to the Java error stream:

System.err.println(e.getMessage());

Can someone tell me what happens to this stream in ColdFusion and whether it is written to a file or is accessible in any other way?

Thanks,

Tom

Answer 1

Default to C:\ColdFusion9\runtime\logs\ for single instance or C:\JRun4\logs for multi instance.

Check "Log Directory" in your CF Administrator.

I'm not sure, but I'd say it's either in application.log or exception.log or both.

Answer 2

• If the exception is being caught, it should not be logged to application.log or exception.log

• Otherwise, for a single instance, try the default C:\ColdFusion9\runtime\logs\ directory for check the latest coldfusion-outX.log file (they rotate). Note: The location of the logs can vary.

Btw: You can always test it out from CF using:

<cfset System = createObject("java", "java.lang.System")>
<cfset System.err.println("where does this message end up?")>